Can Otocinclus Catfish Live With Silver Arowana?
❌Not Compatible
Silver Arowana is aggressive and will likely attack or stress tank mates.
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Parameter Comparison
| Parameter | Otocinclus Catfish | Silver Arowana | Overlap |
|---|---|---|---|
| Temperature | 72–79°F | 75–82°F | 75–79°F ✓ |
| pH Range | 6–7.5 | 6–7.5 | 6–7.5 ✓ |
| Temperament | peaceful | aggressive | Aggression risk ✗ |
| Max Size | 2" | 36" | Size mismatch ✗ |
| Min Tank Size | 10 gal | 125 gal | 125 gal minimum together |
| Diet | Herbivore | Carnivore | — |
| Care Level | intermediate | advanced | — |
Species Profiles
Otocinclus Catfish
Otocinclus spp.
intermediatepeaceful10+ gal
Otocinclus catfish (otos) are tiny, peaceful algae eaters that are incredibly effective at controlling soft green algae and diatoms in planted tanks. They are the gold standard for planted tank algae control, often preferred over larger plecos. However, they are somewhat delicate and require established, well-maintained aquariums.
Full care guide →Silver Arowana
Osteoglossum bicirrhosum
advancedaggressive125+ gal
The Silver Arowana (Osteoglossum bicirrhosum) is a advanced-level freshwater fish growing to 36 inches. Aggressive temperament, minimum 125 gallon tank.
Full care guide →Other Compatible Tank Mates
For Otocinclus Catfish:
For Silver Arowana:
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